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SA Supplements Vol 81 Issue 2106supp

SA Supplements

Volume 81, Issue 2106supp

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Features

Radiations from Atoms and Electrons- II

A Study of the Character of the Mechanism within the Atom

J. J. Thomson

Noise is Wasted Energy

Fighting Noise Consumes Energy

Correlations of the Magnetic and Mechanical Properties of Steel

The Dandelion

A New Field Product with Various Uses

Water Hyacinths in the Panama Canal

A New Thermo-Galvanometer

Ancient Mesopotamia

And the Irrigation System that Made it a Fertile Territory

Arthur Selwyn-Brown

Food Economics

Harry Campbell

Note on the Transparency of the Atmosphere in Central Australia

Utilizing Western Lignites

An Old World Chisel

Carl Hawes Butman

Portland Cement

The Sun Temple in Mesa Verde Park

A Lesson in Ancient American History

Carl Hawes Butman

Automatic Looms

Sand Filters

The Future of Ship Propulsion

A Comparison of Various Systems of Power and Arrangements of Propellers

Visual Pattern-Discrimination in the Vertebrates a Demonstration of the Dog's Deficiency in Detail-Vision

H. M. Johnson

Great Electro-Magnets—II

Wonderful Instruments Proposed for the University of Paris

Measuring Snowfall

Shoal Water Corals

The Ecology of the Floridian and Bahaman

Thomas Wayland Vaughan

Notes on Plant Chemistry

Some of Little-Known Characteristic of Common Flora

P. Q. Keegan

Aeroplane Stability